TY - JOUR

T1 - Combined Neutron and X-Ray Tomography—A Versatile and Non-Destructive Tool in Planetary Geosciences

AU - Martell, J.

AU - Alwmark, C.

AU - Woracek, R.

AU - Alwmark, S.

AU - Hall, S.

AU - Ferrière, L.

AU - Daly, L.

AU - Koch, C. Bender

AU - Hektor, J.

AU - Johansson, S.

AU - Helfen, L.

AU - Tengattini, A.

AU - Mannes, D.

N1 - Funding Information: We thank the Quantification of Imaging Data from MAX IV project, Lund University, and the QuantIm hackathon LINXS for support in image analysis. We are grateful to the ExMAG at NASA for allocation of the Miller Range 03346 meteorite sample. The Luizi sample was collected during an expedition supported by M. Forrest. The Chicxulub drilling expedition was funded by the IODP as Expedition 364 with co‐funding from the ICDP, implementation by ECORD, and contributions and logistical support from the Yucatán state government and UNAM. This work was supported by the Royal Physiographic Society of Lund Grant 40957 (J.M.), the Swedish Research Council Grants 2021‐03836, 621‐2012‐4504 (C.A.), and 2017–06388, 2022–04255 (S.A.). L.D. thanks STFC Grant ST/T002328/1 and ST/W001128/1 for support. Detailed reviews by A. Treiman and one anonymous reviewer, and editorial comments by L. Montési are gratefully acknowledged. Funding Information: We thank the Quantification of Imaging Data from MAX IV project, Lund University, and the QuantIm hackathon LINXS for support in image analysis. We are grateful to the ExMAG at NASA for allocation of the Miller Range 03346 meteorite sample. The Luizi sample was collected during an expedition supported by M. Forrest. The Chicxulub drilling expedition was funded by the IODP as Expedition 364 with co-funding from the ICDP, implementation by ECORD, and contributions and logistical support from the Yucatán state government and UNAM. This work was supported by the Royal Physiographic Society of Lund Grant 40957 (J.M.), the Swedish Research Council Grants 2021-03836, 621-2012-4504 (C.A.), and 2017–06388, 2022–04255 (S.A.). L.D. thanks STFC Grant ST/T002328/1 and ST/W001128/1 for support. Detailed reviews by A. Treiman and one anonymous reviewer, and editorial comments by L. Montési are gratefully acknowledged. Publisher Copyright: © 2024. The Authors.

PY - 2024

Y1 - 2024

N2 - With several upcoming sample return missions, such as the Mars Sample Return Campaign, non-destructive methods will be key to maximizing their scientific output. In this study, we demonstrate that the combination of neutron and X-ray tomography provides an important tool for the characterization of such valuable samples. These methods allow quantitative analyses of internal sample features and also provide a guide for further destructive analyses with little to no sample treatment, which maintains sample integrity, including minimizing the risk of potential contamination. Here, we present and review the results from four case studies of terrestrial impactites and meteorites along with their analytical setup. Using combined X-ray and neutron tomography, a Ni-Fe silicide spherule, that is, projectile material, was located within a Libyan Desert Glass sample and the distribution of hydrous phases was pinpointed in selected impactite samples from the Chicxulub IODP-ICDP Expedition 364 drill core and the Luizi impact structure, as well as in the Miller Range 03346 Martian meteorite.

AB - With several upcoming sample return missions, such as the Mars Sample Return Campaign, non-destructive methods will be key to maximizing their scientific output. In this study, we demonstrate that the combination of neutron and X-ray tomography provides an important tool for the characterization of such valuable samples. These methods allow quantitative analyses of internal sample features and also provide a guide for further destructive analyses with little to no sample treatment, which maintains sample integrity, including minimizing the risk of potential contamination. Here, we present and review the results from four case studies of terrestrial impactites and meteorites along with their analytical setup. Using combined X-ray and neutron tomography, a Ni-Fe silicide spherule, that is, projectile material, was located within a Libyan Desert Glass sample and the distribution of hydrous phases was pinpointed in selected impactite samples from the Chicxulub IODP-ICDP Expedition 364 drill core and the Luizi impact structure, as well as in the Miller Range 03346 Martian meteorite.

KW - impactite

KW - neutron tomography

KW - planetary geology

KW - projectile material

KW - sample return

KW - x-ray tomography

U2 - 10.1029/2023JE008222

DO - 10.1029/2023JE008222

M3 - Review

AN - SCOPUS:85184929812

VL - 129

JO - Journal of Geophysical Research: Planets

JF - Journal of Geophysical Research: Planets

SN - 2169-9100

IS - 2

M1 - e2023JE008222

ER -